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在10℃下，以萘锂为引发剂，以甲苯／THF的混合溶剂为反应介质，采用两步加料法，合成了分子量可控、分子量分布较窄（Mw／Mn≤1．20）的苯乙烯（S）-甲基丙烯酸叔丁酯（TBMA）三嵌段共聚物（PTBMA－b-PS-PTBMA）。并对所得共聚物进行了CPC、IR、1H－NMR、TC及TEM的表征。
At 10 ℃, naphthalene lithium as initiator and mixed solvent of toluene / THF as reaction medium were used to synthesize benzene with controlled molecular weight and narrow molecular weight distribution (Mw / Mn≤1.20) Ethylene (S) -t-butylmethacrylate (TBMA) triblock copolymer (PTBMA-b-PS-PTBMA). The copolymers were characterized by CPC, IR, 1H-NMR, TC and TEM.